Bump pillow from 10.2.0 to 10.3.0

Bumps [pillow](https://github.com/python-pillow/Pillow) from 10.2.0 to 10.3.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@10.2.0...10.3.0)

---
updated-dependencies:
- dependency-name: pillow
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

nikola-requirements.txt

@@ -76,7 +76,7 @@ pexpect==4.8.0
 phpserialize==1.3
 pickleshare==0.7.5
 piexif==1.1.3
-Pillow==10.2.0
+Pillow==10.3.0
 pkgutil_resolve_name==1.3.10
 platformdirs==4.0.0
 prometheus-client==0.18.0